Yuav ua li cas los daws qhov sib txawv hardness tom qab tempering ntawm H13 khoom?
Tso lus
Kev tswj qhov kub thiab txias, cov txheej txheem rau lub cub tawg, ob txheej txheem tempering, thiab txhawb nqa ua ntej - tshuaj xyuas cov ntaub ntawv raw kom lav qhov sib xws ntawm microstructure transformation los ntawm qhov chaw yog tus yuam sij los daws qhov sib txawv hardness tom qab tempering ntawm H13 cov khoom.
1. Txoj hauv kev yooj yim
Lub hauv paus ua rau
Cov lus teb
Kev cuam tshuam
Kub tsis sib haum
Txhawm rau kom paub meej tias qhov sib txawv ntawm qhov ntsuas kub tiag tiag tsawg dua lossis sib npaug li ± 5 degree, teeb tsa PID qhov kub thiab txias -tswj lub qhov cub rau 580℃± 5℃thiab teeb tsa ntau qhov chaw ntsuas kub (sab saum toj, nruab nrab, hauv qab, thiab fab).
Tsis txhob muaj qhov txawv txav siab lossis tsis tshua muaj zog vim muaj cua sov hauv cheeb tsam lossis thaj chaw txias.
Variations hauv Cooling
Txhawm rau ua kom qhov sib xws ntawm cov cua sov sib xws, khaws cov khoom ua haujlwm tsawg kawg 5 cm sib nrug, tsis txhob sib dhos, thiab siv cov cuab yeej racks.
Tshem tawm "shading thaj chaw" kom lav tias cov seem tuab thiab nyias tau ua kom sov tsis tu ncua.
Tsis txaus Tempering Cycles
Nws yuav siv ob lub voj voog ntawm tempering. Ua ntej thib ob tempering, cia cov huab cua nyob rau hauv chav tsev kub raws li qhov pib tempering.
Tso txhua qhov kev ntxhov siab ntxiv kom tsis txhob muaj microstructure rebound.
Variations hauv Raw Materials
Siv XRF los txiav txim seb Cr (5.0% ~ 5.5%), Mo (1.1% ~ 1.75%), thiab V (0.8% ~ 1.2%) cov ntsiab lus txaus siab rau cov kev xav tau ua ntej tempering.
Tshem tawm qhov tsis sib haum xeeb tshwm sim los ntawm kev sib txawv hauv cov ntsiab lus alloy
Kev Tshawb Fawb Txog Kev Tshawb Fawb: Los ntawm kev txhim kho qhov ntsuas kub thiab cov txheej txheem thauj khoom ntawm lub tshuab hluav taws xob, Jingmo Technology txo qhov hardness ntau ntawm H13 manifold daim hlau los ntawm 3.1 HRC rau 1.4 HRC, nce tus nqi batch dhau mus rau 99.2%.
2. Cov ntaub ntawv kaw -Loop thiab txheej txheem tswj
Multi-point Inspection ib yam: Txhua yam yog ntsuas ntawm peb mus rau tsib qhov chaw (center, ntug, thickness ciam teb), thiab qhov ntau yog xam los lav Tsawg dua los yog sib npaug rau 2 HRC;
Kev txheeb xyuas ntawm Metallographic Sampling: Ntau dua lossis sib npaug li 5% ntawm cov khoom siv tau kuaj xyuas kom ntseeg tau tias cov microstructure muaj cov carbides tawg thiab homogenous tempered martensite;
Kev tuav lub qhov cub kub kub: txhawm rau xyuas cov txheej txheem traceability, cov ntaub ntawv cua sov thiab cua txias tau khaws cia rau txhua qhov cub;
Tsim cov ntaub ntawv zoo: txhawm rau txhawm rau txheeb xyuas qhov teeb meem, cov ntaub ntawv hardness, cov neeg ua haujlwm, thiab cov khoom siv tus lej raug sau tseg.
Tswv yim: Yuav kom pom qhov sib txawv ntawm qhov sib txawv sai sai (xws li qhov poob qis hauv qhov nruab nrab hardness), cov kab kos tuaj yeem tsim tau siv cov ntaub ntawv los ntawm ntau cov khoom ua tiav.
3. Cov lus qhia rau On -Site Optimization
Muab qhov tseem ceeb rau cov neeg muab kev pabcuam uas ua raws, xws li Wuhan Heat Treatment Plant thiab Jingmo Technology, uas pab txhawb kev xa khoom sai thiab cov ntaub ntawv qhia meej;
Ua kom pom tseeb ntawm qhov siab - ntsuas kub: Kom tsis txhob thermal softening cuam tshuam rau kev nyeem ntawv, txias lub workpiece mus rau chav tsev kub (<50°C) prior to measurement;
Ua ntej siv lub cuab yeej, calibrate nws. Txhawm rau tiv thaiv kev hloov pauv hauv lub cev, xyuas kom qhov tsis raug tsawg dua lossis sib npaug rau ± 1 HRC ntawm tus qauv thaiv.
